Intel Pentium Dual-Core
From Wikipedia, the free encyclopedia
| Pentium Dual-Core Central processing unit |
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 Intel Pentium Dual-Core E2140 |
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| Produced: | From 2006 |
| Manufacturer: | Intel |
| Max CPU clock: | 1.4 GHz to 2.6 GHz |
| FSB speeds: | 533 MT/s to 800 MT/s |
| Min feature size: | 0.065 µm |
| Instruction set: | MMX, SSE, SSE2, SSE3, SSSE3, x86-64 |
| Microarchitecture: | Core Microarchitecture |
| Cores: | 2 (2x1) |
| Socket: | LGA 775, Socket M, Socket P |
The Pentium Dual-Core brand refers to lower-end x86-architecture microprocessors from Intel. They are based on either the 32-bit Yonah or 64-bit Allendale processors (with very different microarchitectures) targeted at mobile or desktop computers respectively.
| Intel Pentium Dual-Core processor family | ||||||
|---|---|---|---|---|---|---|
| Logo | Desktop | Laptop | ||||
| Code-named | Core | Date released | code-named | Core | Date released | |
 |
Allendale | dual (65nm) | Jun 2007 | Yonah Merom |
dual (65nm) dual (65nm) |
Jan 2007 Nov 2007 |
| List of Intel Pentium Dual-Core microprocessors | ||||||
In 2006, Intel announced a plan[1] to return the Pentium brand from retirement to the market, as a moniker of low-cost Core architecture processors based on single-core Conroe-L, but with 1 MB cache. The numbers for those planned Pentiums were similar to the numbers of the latter Pentium Dual-Core CPUs, but with the first digit "1", instead of "2", suggesting their single-core functionality. Apparently, a single-core Conroe-L with 1 MB cache was not strong enough to distinguish the planned Pentiums from other planned Celerons, so it was substituted by dual-core CPUs, bringing the "Dual-Core" add-on to the "Pentium" moniker.
The first processors using the brand appeared in notebook computers in early 2007. Those processors, named Pentium T2060, T2080, and T2130[2], had the 32-bit Pentium M-derived Yonah core, and closely resembled the Core Duo T2050 processor with the exception of having 1 MB L2 cache instead of 2 MB[3]. All three of them had a 533 MHz FSB connecting CPU with memory. "Intel developed the Pentium Dual-Core at the request of laptop manufacturers"[4].
Subsequently, on June 3, 2007, Intel released the desktop Pentium Dual-Core branded processors[5] known as the Pentium E2140 and E2160[6]. A E2180 model was released later in September 2007. These processors support the Intel64 extensions, being based on the newer, 64-bit Allendale core with Core microarchitecture. These closely resembled the Core 2 Duo E4300 processor with the exception of having 1 MB L2 cache instead of 2 MB[7]. Both of them had an 800 MHz FSB. They targeted the budget market above the Intel Celeron (Conroe-L single-core series) processors featuring only 512 kB of L2 cache.
Such a step marked a change in the Pentium brand, relegating it to the budget segment rather than its former position as the mainstream/premium brand. An article on Tom's Hardware claims that these CPUs are highly overclockable.
[edit] Comparison to the Pentium D
Although using the 'Pentium' name, the Pentium Dual Core is based on the Core technology, which can clearly be seen when comparing the specification to the Pentium D series. For example, the Pentium Dual Core has a maximum of 1MB of L2 Cache while the Pentium D processors can have up to 4MB of L2 Cache. But the major difference is the Pentium Dual Core processors only consume 65W peak while the Pentium D consumes a considerable 130W peak consumption which shows its relation to the Core power saving technology. Despite having a smaller L2 cache, the Pentium dual-core is proven to be much faster than the Pentium D under a variety of CPU intensive applications.[1]
[edit] See also
[edit] References
- ^ DailyTech - Intel "Conroe-L" Details Unveiled
- ^ Intel Pentium E2140 & E2160 review. TechSpot. Retrieved on 2007-06-23.
- ^ Page Not Found - intel.com
- ^ Recap: dawn of mulit-core era - The multicore era is upon us - CNET Asia
- ^ "Pentium E/Celeron 400 to be releasing on June 3", HKEPC Hardware. Retrieved on 2007-03-16.
- ^ Shilov, Anton. "Intel Readies Pentium E2000-Series Processors", X-bit labs. Retrieved on 2007-03-04.
- ^ Intel Pentium E2140 & E2160 review. TechSpot. Retrieved on 2007-06-23.
Intel Processor Numbers chart for Intel Pentium Dual-Core processors
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